we are using excel so displaying formulas would be greatly appreciated

2020 Below is a list of activities associated with a process. Draw the process flow diagram in the space provided to the right using the given activity times. Use the EST - EFT convention to find the process flow time These are dependent activities. All paths must be complete for the process to be complete. min) 21 What is the critical path of the process above? (List activities on critical path in space below) Critical Path = 225 What is the flow time of the critical path? Taiticalpats= NN/A 23 What is the flow time of the process? Teu= NN/A 24 S. What is the slack time for the activities below